Commodore PET

The Commodore PET was a huge computer which looked so space-aged. The monochrome screen could display certain characters so most of the games consisted of guiding an asterisk around a line maze. A girl brought one of these in to my junior school once and it had a game on it where you had to switch lines to stop trains from crashing. The irony being that she plonked this monster right on top of the 3D card model of the "Advanced Passenger Train" I'd been making and ruined it. :0(